Stage IIB Digestive System Neuroendocrine Tumor AJCC v7

**Semantic type:** Neoplastic Process

**Definition:** Stage IIB includes: T3, N0, M0. T3: Stomach: tumor penetrates subserosa; jejunum/ileum: tumor invades through the muscularis propria into subserosal tissue without penetration of overlying serosa or invades into non-peritonealized tissues; ampulla/duodenum: tumor invades pancreas or retroperitoneum or into non-peritonealized tissues; colon or rectum: tumor invades through the muscularis propria into the subserosa, or into non-peritonealized pericolic or perirectal tissues. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 7th ed.)

**Synonyms:** - Stage IIB Digestive System Neuroendocrine Neoplasm - Stage IIB Digestive System Neuroendocrine Neoplasm AJCC v7 - Stage IIB Digestive System Neuroendocrine Tumor - Stage IIB Gastrointestinal Neuroendocrine Neoplasm - Stage IIB Gastrointestinal Neuroendocrine Neoplasm AJCC v7